A toaster is rated at 640 W when connected to a 150 V source.?

Question

What current does the toaster carry, and what is its resistance?

A? Ohms?

Answer 1

P = V^2 / R

R = V^2 / P

R = 150^2 / 640 = 35.16 Ohms

R = V / I

I = V / R

I = 150 / 35.16 = 4.27 A

Answer 2

Oh god, this brings back bad memories of science class.

Answer 3

The current is 4.27A and the resistance is around 35 Ohms

P = U x I and Ohms = U / I

Answer 4

P=I^2R

640 = (V/R)^2(R)

640/(150^2) = 1/R

R = 35 ohms

I = 4.3 A